Each person on a team brings a unique perspective to the process; i.e., how things work; what happens when changes are made, and how to sustain improvements during daily work. Contributions are made from each individual's skill set and the team's synthesis of ideas.
Division of labor is the economic term for the practice of assigning small parts of a complicated job to individual workers who specialize in doing just their small part.
Not, however, towards the 'shops' where cunning artificers work in pearls and diamonds and gold and silver, making their hands so rich, that the enriched water in which they wash them is bought for the refiners;--not towards these does Mr Wegg stump, but towards the poorer shops of small retail traders in commodities to eat and drink and keep folks ...